The independence of the states within the Union once served as a check on coercive social experimentation. One size does not fit all, nor should everything be dictated from Washington. If Massachusetts wishes to socialize the state, while Texas limits the role of government, so long as it is within the framework of Constitution, should that even matter? Let Massachusetts and Texas each pay for their own government, and show the views of their own people, different though they are.
Much of what the Federal government decides should be decided at the state level.
Laws that may seem perfectly right and reasonable to the people of California may not hold the same importance or logic to the people of North Dakota or Alaska. The one size fits all mentality of the Federal government, which tends to cater to the urban experiments at the cost of rural folk, does not work. It only serves to breed resentment and deny the people their rights within the framework of the Constitution.
For a society that claims multiculturalism is a good thing, why do we not allow for regional differences? Is difference of culture and view something that we will only allow to foreigners?
Being one people does not mean that we surrender our regional differences. Truly, there are things we should agree upon, as we are a nation based on an ideal and not a race, but is there not room within that ideal for individual rights and regional color? I believe there is, and to force a one size fits all approach is to force a great number of people to all conform to one mindset. It is a gross misrepresentation of the American ideal.